Abstract
The number of open datasets available on the web is increasing rapidly with the rise of the Linked Open Data (LOD) cloud and various governmental efforts for releasing public data in different formats, not only in RDF. The aim in releasing open datasets is for developers to use them in innovative applications, but the datasets need to be found first and metadata available is often minimal, heterogeneous, and distributed making the search for the right dataset often problematic. To address the problem, we present DataFinland, a semantic portal featuring a distributed content creation model and tools for annotating and publishing metadata about LOD and non-RDF datasets on the web. The metadata schema for DataFinland is based on a modified version of the voiD vocabulary for describing linked RDF datasets, and annotations are done using an online metadata editor SAHA connected to ONKI ontology services providing a controlled set of annotation concepts. The content is published instantly on an integrated faceted search and browsing engine HAKO for human users, and as a SPARQL endpoint and a source file for machines. As a proof of concept, the system has been applied to LOD and Finnish governmental datasets.
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Alexander, K., Cyganiak, R., Hausenblas, M., Zhao, J.: Describing linked datasets - on the design and usage of void, the vocabulary of interlinked datasets. In: Conjunction with 18th International World Wide Web Conference (WWW 2009) Linked Data on the Web Workshop (LDOW 2009) (2009)
Bizer, C., Cyganiak, R., Heath, T.: How to publish linked data on the web (2007)
Bizer, C., Heath, T., Berners-Lee, T.: Linked data - the story so far. International Journal on Semantic Web and Information Systems, IJSWIS (2009)
Cyganiak, R., Maali, F., Peristeras, V.: Self-service linked government data with dcat and gridworks. In: Proceedings of the 6th International Conference on Semantic Systems, Graz, Austria. I-SEMANTICS 2010, pp. 37:1–37:3. ACM, New York (2010)
dÁquin, M., Motta, E.: Watson, more than a semantic web search engine (2010)
Dekkers, M., Polman, F., te Velde, R., de Vries, M.: Mepsir: Measuring european public sector information resources. final report of study on exploitation of public sector information. Technical report (2006)
Finin, T., Ding, L., Pan, R., Joshi, A., Kolari, P., Java, A., Peng, Y.: Swoogle: Searching for knowledge on the semantic web. In: AAAI 2005 (intelligent systems demo), pp. 1682–1683. The MIT Press, Cambridge (2005)
Hausenblas, M., Halb, W., Raimond, Y., Heath, T.: What is the size of the semantic web? In: Proceedings of I-SEMANTICS 2008, Graz, Austria (2008)
Hearst, M., Elliott, A., English, J., Sinha, R., Swearingen, K., Lee, K.-P.: Finding the flow in web site search. CACM 45(9), 42–49 (2002)
Hildebrand, M., van Ossenbruggen, J., Amin, A., Aroyo, L., Wielemaker, J., Hardman, L.: The design space of a configurable autocompletion component. Technical Report INS-E0708, Centrum voor Wiskunde en Informatica, Amsterdam (2007)
Hogan, A., Harth, A., Umrich, J., Decker, S.: Towards a scalable search and query engine for the web. In: WWW 2007: Proceedings of the 16th international conference on World Wide Web, pp. 1301–1302. ACM, New York (2007)
Hyvönen, E., Saarela, S., Viljanen, K.: Application of ontology techniques to view-based semantic search and browsing. In: Bussler, C.J., Davies, J., Fensel, D., Studer, R. (eds.) ESWS 2004. LNCS, vol. 3053, pp. 92–106. Springer, Heidelberg (2004)
Hyvönen, E.: Preventing interoperability problems instead of solving them. In: Semantic Web Journal (2010) (accepted for pubication)
Hyvönen, E., Mäkelä, E.: Semantic autocompletion. In: Mizoguchi, R., Shi, Z.-Z., Giunchiglia, F. (eds.) ASWC 2006. LNCS, vol. 4185, pp. 739–751. Springer, Heidelberg (2006)
Hyvönen, E., Viljanen, K., Mäkelä, E., Kauppinen, T., Ruotsalo, T., Valkeapää, O., Seppälä, K., Suominen, O., Alm, O., Lindroos, R., Känsälä, T., Henriksson, R., Frosterus, M., Tuominen, J., Sinkkilä, R., Kurki, J.: Elements of a national semantic web infrastructure—case study finland on the semantic web. In: Proceedings of the First International Semantic Computing Conference (IEEE ICSC 2007). IEEE Press, Irvine (2007) (invited paper)
Kurki, J., Hyvönen, E.: Collaborative metadata editor integrated with ontology services and faceted portals. In: Workshop on Ontology Repositories and Editors for the Semantic Web (ORES 2010), The Extended Semantic Web Conference ESWC 2010, CEUR Workshop Proceedings, Heraklion, Greece (2010) http://ceur-ws.org
Maali, F., Cyganiak, R., Peristeras, V.: Enabling interoperability of government data catalogues. In: Wimmer, M.A., Chappelet, J.-L., Janssen, M., Scholl, H.J. (eds.) EGOV 2010. LNCS, vol. 6228, pp. 339–350. Springer, Heidelberg (2010), http://dx.doi.org/10.1007/978-3-642-14799-9_29
Oren, E., Delbru, R., Catasta, M., Cyganiak, R., Tummarello, G.: Sindice.com: A document-oriented lookup index for open linked data. International Journal of Metadata, Semantics and Ontologies 3 (2008)
Pollitt, A.S.: The key role of classification and indexing in view-based searching. Technical report, University of Huddersfield, University of Huddersfield, UK (1998), http://www.ifla.org/IV/ifla63/63polst.pdf
Suominen, O., Viljanen, K., Hyvönen, E.: User-centric faceted search for semantic portals (2007)
Tuominen, J., Frosterus, M., Viljanen, K., Hyvönen, E.: ONKI SKOS server for publishing and utilizing SKOS vocabularies and ontologies as services. In: Aroyo, L., Traverso, P., Ciravegna, F., Cimiano, P., Heath, T., Hyvönen, E., Mizoguchi, R., Oren, E., Sabou, M., Simperl, E. (eds.) ESWC 2009. LNCS, vol. 5554, pp. 768–780. Springer, Heidelberg (2009)
Viljanen, K., Tuominen, J., Hyvönen, E.: Ontology libraries for production use: The finnish ontology library service ONKI. In: Aroyo, L., Traverso, P., Ciravegna, F., Cimiano, P., Heath, T., Hyvönen, E., Mizoguchi, R., Oren, E., Sabou, M., Simperl, E. (eds.) ESWC 2009. LNCS, vol. 5554, pp. 781–795. Springer, Heidelberg (2009)
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Frosterus, M., Hyvönen, E., Laitio, J. (2011). DataFinland—A Semantic Portal for Open and Linked Datasets. In: Antoniou, G., et al. The Semanic Web: Research and Applications. ESWC 2011. Lecture Notes in Computer Science, vol 6644. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-21064-8_17
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DOI: https://doi.org/10.1007/978-3-642-21064-8_17
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